#include <hd_led.h>
#include <hd_oled_protocol_i2c.h>
#include <pd_timer.h>
#include <pd_timer_it.h>
#include <pd_timer_encoder.h>
#include <stddef.h>
#include <pd_i2c_hd.h>
#include <hd_flash.h>
#include "main.h"
#include "delay.h"
#include "hd_oled.h"


#define OLED_PROTOCOL       2   // Select a protocol. SPI, 1; I2C, 2;
#define OLED_PROTOCOL_IMPL  2   // Select a implement. simulate, 1; hardware, 2;

int16_t speed;
static TimerEncoder *timerEncoder;
static OLED *oled;

void oled_instance();

extern void SystemClock_Config(void);

int main(void) {
    SystemClock_Config();

    NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_2);


    oled->showString(oled, 0, 0, "TIM Encoder");
    oled->showString(oled, 0, 32, "Speed:");
    oled->refresh(oled);

    // TIM3 Encoder Interface
    Timer *tim3 = TimerBuilder.build(TIM3, 1 - 1, 65536 - 1);
    GPIO *gpio[] = {GPIOBuilder.build(GPIOB, LL_GPIO_PIN_4), GPIOBuilder.build(GPIOB, LL_GPIO_PIN_5)};
    gpio[0]->Alternate = LL_GPIO_AF_2;
    gpio[1]->Alternate = LL_GPIO_AF_2;
    uint32_t channel[] = {LL_TIM_CHANNEL_CH1, LL_TIM_CHANNEL_CH2};
    TimerCh *timerCH = TimerChBuilder.build(gpio, 2, channel, 2);
    timerEncoder = TimerEncoderBuilder.build(tim3, timerCH);
    timerEncoder->init(timerEncoder);

    // TIM2 IT
    Timer *tim2 = TimerBuilder.build(TIM2, 8400 - 1, 10000 - 1);
    TimerIT *timerIt = TimerITBuilder.build(tim2);
    timerIt->init(timerIt, TIM2_IRQn, 2, 2);

    while (1) {
        oled->printf(oled, 48, 32, "%5d", speed);
        oled->refresh(oled);
        delay_ms(100);
    }
}

void TIM2_IRQHandler(void) {
    if (LL_TIM_IsActiveFlag_UPDATE(TIM2)) {
        speed = timerEncoder->getCounter(timerEncoder);
        LL_TIM_ClearFlag_UPDATE(TIM2);
    }
}

void oled_instance() {
#if OLED_PROTOCOL == 1
    GPIO *sckGPIO = GPIOBuilder.build(GPIOA, LL_GPIO_PIN_5); // Clock, SPIx_SCK
    GPIO *sdaGPIO = GPIOBuilder.build(GPIOA, LL_GPIO_PIN_7); // MOSI,  SPIx_MOSI
    GPIO *resGPIO = GPIOBuilder.build(GPIOA, LL_GPIO_PIN_3); // Reset, General IO, the chip reset pin is better
    GPIO *dcGPIO = GPIOBuilder.build(GPIOA, LL_GPIO_PIN_1);  // Data or Command, General IO
    GPIO *csGPIO = GPIOBuilder.build(GPIOA, LL_GPIO_PIN_2);  // Chip Select(Slave Select), General IO
    SPIGPIO *spiGPIO = SPIGPIOBuilder.build(&csGPIO, 1, sckGPIO, sdaGPIO, NULL);

#if OLED_PROTOCOL_IMPL == 1
    SPISimulate *spiObj = SPISimulateBuilder.build(spiGPIO);
#elif OLED_PROTOCOL_IMPL == 2
    SPIHardware *spiObj = SPIHardwareBuilder.build(SPI1, spiGPIO);
#endif
    SPI *spi1 = (SPI *) spiObj;
    spi1->init(spi1);
    OLEDProtocolSPI *oledProtocolObj = OLEDProtocolSPIBuilder.build(spi1, resGPIO, dcGPIO, csGPIO);

#elif OLED_PROTOCOL == 2
    GPIO *sckGPIO = GPIOBuilder.build(GPIOB, LL_GPIO_PIN_10);  // I2Cx_SCL
    GPIO *sdaGPIO = GPIOBuilder.build(GPIOB, LL_GPIO_PIN_11);  // I2Cx_SDA
#if OLED_PROTOCOL_IMPL == 1
    I2CSimulate *i2CObj = I2CSimulateBuilder.build(sckGPIO, sdaGPIO);
#elif OLED_PROTOCOL_IMPL == 2
    I2CHardware *i2CObj = I2CHardwareBuilder.build(I2C2, sckGPIO, sdaGPIO);
#endif
    I2C *i2c = (I2C *) i2CObj;
    i2c->init(i2c);
    OLEDProtocolI2C *oledProtocolObj = OLEDProtocolI2CBuilder.build(i2c);
#endif

    StorageFlash *storageFlash = StorageFlashBuilder.build();
    OLEDFont *oledFont = OLEDFontBuilder.build((Storage *) storageFlash, ENCODING_UTF8);
    oled = OLEDBuilder.build((OLEDProtocol *) oledProtocolObj, oledFont);
    oled->init(oled);
}

